// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es6id: 21.1.4
description: Instances has the own property length
info: |
  21.1.4 Properties of String Instances

  ...

  String instances have a length property, and a set of enumerable properties
  with integer indexed names.
includes: [propertyHelper.js]
---*/

function Test() {
    class S extends String {}

    var s1 = new S();
    assert.sameValue(s1.length, 0);

    verifyNotWritable(s1, 'length');
    verifyNotEnumerable(s1, 'length');

    var s2 = new S('test262');
    assert.sameValue(s2.length, 7);

    verifyNotWritable(s2, 'length');
    verifyNotEnumerable(s2, 'length');
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
